nvidia kernel module

[Scott Long]

Russell Jackson wrote:
> Getting this message with today's CURRENT and a freshly compiled nvidia-driver:
> 
> WANRING: Device driver "nvidia" has wrong version and is disabled. Recompile KLD module.
> WARNING: Device driver "nvidiactl" has wrong version and is disabled. Recompile KLD module.
> 
> Attempting to unload the module instantly results in being dropped into the debugger.
> 
> nvidia0: detached
> panic: malloc(9)/free(9) confusion.
> Probably freeing with wrong type, but maybe not here.
> at line 302 in file /usr/src/sys/kern_malloc.c
> 
> trace shows it barfed in free() at free+0x16d
> 

This is a result of yesterdays cdevsw commits.  It's in the process of
being fixed right now.

Scott